I wish I could give them negative stars. They have...

I wish I could give them negative stars. They have been managing our all-owners building for less than 2 years and they have done very little other than increasing the monthly HOA by 40%. There is a fee for everything, even for submitting online payment using a checking account (not credit card). I'm not sure if it's because they are so used to managing large rental properties for corporate landlords, their attitudes towards all of our owners make us feel that they are the bosses, not us. They keep sending us emails about new rules of the building which only make their job easier, without any prior consultation with the tenants.
The bottom line: They are running a shady business whose main objective is to squeeze as much money from their clients as possible without doing their job. I'm currently in the process of contacting other tenants of our building to figure out a way to fire them.